134745 has 16 divisors (see below), whose sum is σ = 232512. Its totient is φ = 66240.

The previous prime is 134741. The next prime is 134753. The reversal of 134745 is 547431.

It is not a de Polignac number, because 134745 - 2² = 134741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151 + ... + 540.

It is an arithmetic number, because the mean of its divisors is an integer number (14532).

2¹³⁴⁷⁴⁵ is an apocalyptic number.

134745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134745 is a deficient number, since it is larger than the sum of its proper divisors (97767).

134745 is a wasteful number, since it uses less digits than its factorization.

134745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712.

The product of its digits is 1680, while the sum is 24.

The square root of 134745 is about 367.0762863493. The cubic root of 134745 is about 51.2669584965.

Subtracting 134745 from its reverse (547431), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 134745 in words is "one hundred thirty-four thousand, seven hundred forty-five".